摘要
针对某工程的位移比和位移角超限等问题,本文采用消能减震技术对其进行振动控制,具体方案为结构安装屈曲约束支撑和黏滞阻尼器。对原结构和减震结构进行了弹性和弹塑性动力时程分析,对比了两种结构体系小震、大震下的计算分析结果,并在罕遇地震作用下对原结构和减震结构进行了抗震性能评估。结果表明:屈曲约束支撑和黏滞阻尼器有效控制了结构的扭转效应和层间位移角,改善了结构的塑性损伤情况,从而提高了结构在地震作用下的抗震性能。
Due to the displacement ratio and the displacement angle of a project are beyond the limit, the energy dissipation damping technology is adopted to control structural vibration in this paper, which is buckling restrained brace and viscous damper being used in the structure. Elastic and elastic-plastic dynamic time history analyses are carried out on primary structure and energy damping structure, then the calculation results are contrasted under the frequent and rare earthquakes and the seismic behaviors are evaluated under rare earthquake. The results indicate that buckling restrained brace and viscous damper can effectively control the structural torsional effect and the displacement angle as well as reduce the plastic damage of the structure, thus the seismic behavior of the structure is improved under earthquake.
作者
黄文成
张永山
郭镪文
肖发平
Huang Wen-cheng Zhang Yong-shan Guo Qiang-wen Xiao Fa-ping(School of Civil Engineering, Guangzhou University, Guangzhou 510006, China)
出处
《工程抗震与加固改造》
北大核心
2017年第4期11-17,54,共8页
Earthquake Resistant Engineering and Retrofitting
基金
国家自然科学基金项目(51378135
51408140)
教育部博士基金(20134410120003)
广州市科技计划项目(201510010291)
关键词
偏心框架结构
扭转效应
屈曲约束支撑
黏滞阻尼器
弹塑性分析
eccentric frame structure
torsion effect
buckling restrained brace
viscous damper
elastic and elastic plastic analysis
